jdancer's latest activity

  • J
    jdancer replied to the thread CEPH Performance.
    As they say, it depends on workloads. Ceph is a scale-out solution, more nodes/OSDs = more IOPS. At least you got the right number of nodes and networking correct at the beginning. Been using Ceph Tentacle erasure-coding for some VMs workloads...
  • J
    jdancer replied to the thread New install on Dell R710 - Upgrade PERC 6 to H310 or H730?.
    I have flashed a PERC 6 in a Dell R200 to IT-mode using Broadcom firmware using someone's web blog post. This was awhile ago. 12th-gen Dell PERC controllers (ie, H310) can be flashed to IT-mode per https://fohdeesha.com/docs/perc.html I have...
  • J
    jdancer replied to the thread PVE8 Intel I350-T4 NIC driver issues.
    Hardware that works in both R630 & R640, you can use the R640 firmware for the hardware on the R630. I flashed the firmware using the Dell .BIN file for RHEL & clones.
  • J
    jdancer replied to the thread PVE8 Intel I350-T4 NIC driver issues.
    I use Dell X550/I350 rNDCs (CD2VM) wihout issues in production with the latest 7.x kernel in R630s. BIOS settings enabled options are X2APIC, I/OAT DMA, UEFI, and Secure Boot. I do NOT have SR-IOV enabled. I did flash the Dell version 23.0.0...
  • J
    jdancer replied to the thread Are refurbished laptops reliable enough for a small Proxmox VE homelab?.
    Since Proxmox is Debian with an Ubuntu LTS kernel, it's reliable enough. Have it running on a Dell Latitude 5421 with no issues.
  • J
    jdancer replied to the thread Ceph in 2026 HDD.
    Been migrating Dell VMware clusters running SAS HDDs over to Proxmox Ceph. As you know, Ceph is a scale-out solution. More nodes/OSDs = more IOPS. These Dells are 2U 16-drive bay servers. Use 2 small SAS drives to mirror Proxmox using ZFS...
  • J
    jdancer replied to the thread 4 node cluster with CEPH.
    Been migrating Dell VMware clusters over to Proxmox Ceph clusters. As with VMware, Ceph really, really wants homogeneous hardware, ie, same CPU, memory, storage, storage controller, firmware, networking. While it's true, 3-nodes is the minimum...
  • J
    jdancer replied to the thread Ceph 3-node cluster, VM I/O freeze after node reboot/update.
    If you know you will never expand this 3-node cluster, I suggest using a full-mesh broadcast network. This eliminates a switch and every node will drop packets not addressed to it. Promox has a KB on it at...
  • J
    jdancer replied to the thread Server hardware recommendations for new 3–4 node Proxmox VE / Ceph cluster.
    At work, been migrating 13th & 14th-gen Dell VMware clusters over to Proxmox Ceph. Swap out the PERC RAID controllers for Dell HBA330s IT-mode controllers, since Ceph/ZFS don't work with RAID controllers. If I was buying new, I will go with...
  • J
    jdancer replied to the thread CEPH & ZFS Using a PERC H755n.
    As you know, ZFS & Ceph really don't play nice with RAID controllers like Dell PERCs. While it's true you change the PERC from RAID mode to IT-mode, I've had issues in the past with the megaraid_sas driver. That's why I switch out Dell PERCs for...
  • J
    jdancer replied to the thread ZFS with PERC H745: is RAID0 the same as JBOD?.
    On 13th- & 14th-gen Dells PERCs, have to delete the virtual disks before switching it to HBA-mode. Call it a quirk. I've also had issues with the megaraid_sas driver in the past, so I just swap out the PERCs for Dell HBA330s, which is a true...
  • J
    jdancer replied to the thread Who runs Proxmox on the oldest hardware ?.
    Have it running on a Dell R200 which was released back in 2007. Was running LXCs but now it's a PBS instance. Mirrored ZFS drives. Makes for good small LXC/PBS server but that's all it's good for.
Show older items
Top Bottom
Back